User Manual

7
Siemens
A6V11393927_en--_c
Smart Infrastructure
2020-09-01
Technical data
Power data
Power supply (supplied by DXR1)
Operating voltage
DC 12…26.4 V, 5 mA
Operational data
Temperature range
Operating temperature
0…50 ℃
Temperature measurement accuracy
±0.5 ℃ at 25 ℃
±1 ℃ max.
Sensing element type
NTC 10k
Interfaces
Interface
Customized interface
RJ45 (shield CAT 5-E)
Wiring length: 30 m
Pin
Description
1
Ground
2
Not connected
3
Modbus A+
4, 5
+12…26.4 V
6
Modbus B-
7, 8
Not connected
Modbus registers (note for connection to other devices)
QMX1.M34H acts as a Modbus slave device using fixed communication parameters as
below:
Communication parameters
Device address
1
Baud rate
9600
Data bits
8
Parity
Even
Stop bits
1
Register name
Description
I/O
type
Modbus
function code
Modbus
register
type
Start
address
Register
number
Data type
TempRoom
Room temperature from
QMX1.M34H sensor
AI
04: Read input
register
Input
register
0
2
Float, F32-L-S
TempRoomSetpU
serOffset
Setpoint shift input value
from QMX1.M34H button
AI
04: Read input
register
Input
register
2
2
Float, F32-L-S
PresenceStatus
Presence button input
AI
04: Read input
Input
4
1
U16-B